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Dec. 22,1925 1,566,911

C. E. NELSON METHOD OF APPLYING PROTECTIVE COATINGS Filed D80. 29, 1923 l3 l2 IIIIIIIIIIIIII'II/III/I WII/IIIIIIIIIIIIIIIIIIIIIIII/ IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIII VIIIIIIIIII cHARLmENpwoN :5 showing:

meat Dec. .22, 1925.

PATENT OFFICE.

cmnnns nnwm NELSON, or HAINES crr Y, FLORIDA.

un'rnon or'nrrnvme rnorn'c'rrvn commas.

Application filed December 28, 1923. Serial No. 688,463.

To all whom it met; concern: Be it known that I, CHARLES E. NELsoN, a cltizen of the United States, residing at Haines City, in the county of Polk and.

State of Florida, have invented certain new and useful Improvements in Methods of Applying Protective Coatings, of which the following is a specification.

This invention relates to protective coat- .0 ing s, and methods of applying the same.

- In the present invention, I form a protective coating for waterproofing and fireproofing and the like, by reducing glass to a fine powder, heating it to a temperature above its melting point, and applying it to the surface to be protected where it cools and solidifies. The invention further comprises a process in which" powdered glass is forced, by pressure, thr'ougha heating medium and sprayed on to the surface. I

In the accompanying drawings, I have shown an apparatus articularly suitable for use in practicing t e process. In this Figure "1 is a central vertical sectional view, a

Figure 2 is a' horizontal sectional view on linIe 22 of Figure 1, and,

. I of Flgurel.

Referring to the drawings, the reference numeral 1- designates 'an inner receptacle mounted within an outer receptacle 2. The inner receptacle ma be supported .in the outer receptacle an spaced therefrom by means of suitable supporting members or brackets 3. This forms a space 4 surrouiidingthe inner receptacle which may be heated. The inner receptacle is provided with an opening and a pipe 'or conduit 5' extends from this opening through the top of the outer receptacle to permit introduction of powdered glass. A pum storage of gasoline, 'alcoho or othervQla tile liquid fuel. This receptacle is provided with an outlet pipe having a valve 11' re 3 is a sectional view on line 3-3 6 -com-- municates with the innerreceptac e toperv .fluid and the outlet pipe extends into a sleeve 12.

The sleeve is provided with perforations 13 formlng a blow torch. The outlet pi e 7 also extends into this sleeve. The fue receptacle may be provided with an air pump 14 and a priming cup 15.

' In practicing the process, the glass is first ground to a fine powder and introduced into the inner rece tacle. If desired, a pigment may be adde to the ground glass to produce a coating of a desired color or colored glass may be ground and used in practicing the process. The pump 6 is operated to place the inner receptacle under pressure, and the burner lighted by forcing the air into the fuel container and opening the valve 11. When the glass employed has a high melting point, heat may be introduced into the chamber 4 to raise the temperature of the glass in the inner receptacle to a point slightly below its melting point. When the flame in the torchhas become sufiiciently hot, the valve 8 is opened, forcing the minute particles of glass under pressure,

onto the surface and splidifies, forming a thln or coatln of glass, which serves as a. fire, water, an moisture proof protective coating.

It is to be understood that the form of the invention herewith shown and described is to be taken as a preferred example of the same, andthat various changes in the shape,

size, and arrangement of parts may be resorted to without departing from the spirit of the invention or the scope of the subjoined claim.

I claim: The herein described method of coating articles with glass having a high melting point, which consists 'in producing a blow flame, preheating powdered glass to a temperature slightly below its melting point, feeding the preheated powdered glass under ressure into the blow flame and in the directlon of thetravel thereof to form a stream of molten glass, and directing the .stream of molten glass upon an article to form a coating thereon.

I In testimony whereof I atfix my signat re CHAR-LES EpWiN NELSON. 

